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# Copyright 2017 The TensorFlow Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
include (ExternalProject)
set(gif_INCLUDE_DIR ${CMAKE_CURRENT_BINARY_DIR}/external/gif_archive/giflib-5.1.4/)
set(gif_URL http://mirror.bazel.build/ufpr.dl.sourceforge.net/project/giflib/giflib-5.1.4.tar.gz)
set(gif_HASH SHA256=34a7377ba834397db019e8eb122e551a49c98f49df75ec3fcc92b9a794a4f6d1)
set(gif_INSTALL ${CMAKE_BINARY_DIR}/gif/install)
set(gif_BUILD ${CMAKE_BINARY_DIR}/gif/src/gif)
set(gif_HEADERS
"${gif_INSTALL}/include/gif_lib.h"
)
if(WIN32)
set(gif_STATIC_LIBRARIES ${gif_INSTALL}/lib/giflib.lib)
ExternalProject_Add(gif
PREFIX gif
URL ${gif_URL}
URL_HASH ${gif_HASH}
PATCH_COMMAND ${CMAKE_COMMAND} -E copy_if_different ${CMAKE_SOURCE_DIR}/patches/gif/CMakeLists.txt ${gif_BUILD}
INSTALL_DIR ${gif_INSTALL}
DOWNLOAD_DIR "${DOWNLOAD_LOCATION}"
CMAKE_CACHE_ARGS
-DCMAKE_BUILD_TYPE:STRING=Release
-DCMAKE_VERBOSE_MAKEFILE:BOOL=OFF
-DCMAKE_INSTALL_PREFIX:STRING=${gif_INSTALL}
)
ExternalProject_Add_Step(gif copy_unistd
COMMAND ${CMAKE_COMMAND} -E copy_if_different
${CMAKE_SOURCE_DIR}/patches/gif/unistd.h ${gif_BUILD}/lib/unistd.h
DEPENDEES patch
DEPENDERS build
)
else()
set(gif_STATIC_LIBRARIES ${gif_INSTALL}/lib/libgif.a)
set(ENV{CFLAGS} "$ENV{CFLAGS} -fPIC")
ExternalProject_Add(gif
PREFIX gif
URL ${gif_URL}
URL_HASH ${gif_HASH}
INSTALL_DIR ${gif_INSTALL}
DOWNLOAD_DIR "${DOWNLOAD_LOCATION}"
BUILD_COMMAND $(MAKE)
INSTALL_COMMAND $(MAKE) install
CONFIGURE_COMMAND
${CMAKE_CURRENT_BINARY_DIR}/gif/src/gif/configure
--with-pic
--prefix=${gif_INSTALL}
--libdir=${gif_INSTALL}/lib
--enable-shared=yes
)
endif()
# put gif includes in the directory where they are expected
add_custom_target(gif_create_destination_dir
COMMAND ${CMAKE_COMMAND} -E make_directory ${gif_INCLUDE_DIR}
DEPENDS gif)
add_custom_target(gif_copy_headers_to_destination
DEPENDS gif_create_destination_dir)
foreach(header_file ${gif_HEADERS})
add_custom_command(TARGET gif_copy_headers_to_destination PRE_BUILD
COMMAND ${CMAKE_COMMAND} -E copy_if_different ${header_file} ${gif_INCLUDE_DIR}/)
endforeach()
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